CN201163587Y - Inverse rolling fork type operation device - Google Patents
Inverse rolling fork type operation device Download PDFInfo
- Publication number
- CN201163587Y CN201163587Y CNU2007201985580U CN200720198558U CN201163587Y CN 201163587 Y CN201163587 Y CN 201163587Y CN U2007201985580 U CNU2007201985580 U CN U2007201985580U CN 200720198558 U CN200720198558 U CN 200720198558U CN 201163587 Y CN201163587 Y CN 201163587Y
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- CN
- China
- Prior art keywords
- roller
- cam
- operation device
- fork type
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a conversely rolling fork-shaped actuating device, which comprises a shell, a transmission mechanism and a push rod, wherein, the transmission mechanism comprises a rotary shaft which is provided with a pivoted arm, and a cam the cross section of which is irregular; the cam is sleeved on the head of the rotary shaft and closely matched with the rotary shaft; the head of the rotary shaft is positioned above the push rod; the upper end of the push rod is provided with an axial groove; a roller is fixed inside the groove through a pin shaft and meshed with the cam; and a lug which is positioned on the upper right of the cam is arranged on the cam. Compared with the prior art, the conversely rolling fork-shaped actuating device has s compact structure, stable performance, reliable operation and long service life.
Description
Technical field
The utility model relates to the actuating of travel switch, particularly relates to a kind of reverse rolling fork type powder operation device.
Background technology
Travel switch can be transformed into electrical signal with mechanical movement, is used for controlling mechanical action or program control, therefore is used widely in control system.Exist the operating characteristics instability in actual applications, defective such as it is unreliable to work.Because defencive function is perfect not to the utmost, on-the-spot abnormal running causes mechanism's clamping stagnation, and the malfunctioning fault that causes of moving happens occasionally.
Summary of the invention
Technical problem to be solved in the utility model is exactly to provide a kind of reverse rolling fork type powder operation device for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of reverse rolling fork type powder operation device, it is characterized in that, comprise housing, transmission mechanism, push rod, described transmission mechanism comprises the irregular cam in rotating shaft, cross section of being with pivoted arm, described cam is sheathed on the head end of rotating shaft, both tight fits, this head end is positioned at the top of push rod, the upper end of described push rod offers axial groove, fix a roller by bearing pin in this groove, this roller and cam meshing close, and described cam is provided with and is positioned at its upper right protuberance.
Described transmission mechanism also comprises the strutting piece of being close to inner walls, this strutting piece is positioned at the top of rotating shaft head end, a roller is fixed by bearing pin in its lower end, and this roller and cam meshing close, and is provided with spring between the inner walls of the upper end of described strutting piece and its top.
The lower end of described push rod also is provided with axial screw, and this screw internal fixation has adjustment screw, and tightly touch mutually the header planes of this adjustment screw and the operating side of travel switch.
Described pivoted arm is the fork-shaped pivoted arm, by the bearing pin riveting one group of roller is arranged on it.
Described roller is two, and two-wheeled is all preceding.
Described roller is two, and revolver is preceding, right wheel after.
Described roller is two, revolver after, right wheel is preceding.
Compared with prior art, the utility model compact conformation, stable performance, reliable operation, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, 2, a kind of reverse rolling fork type powder operation device, comprise housing 1, transmission mechanism, push rod 2, described transmission mechanism comprises the irregular cam 4 in rotating shaft 3, the cross section of being with pivoted arm, and described cam 4 is sheathed on the head end of rotating shaft 3, both tight fits, this head end is positioned at the top of push rod 2, and the upper end of described push rod 2 offers axial groove, fixes a roller 5 by bearing pin in this groove, this roller 5 is meshed with cam 4, and described cam is provided with and is positioned at its upper right protuberance 11.
Described transmission mechanism also comprises the strutting piece of being close to inner walls 6, this strutting piece 6 is positioned at the top of rotating shaft head end, a roller 7 is fixed by bearing pin in its lower end, and this roller 7 is meshed with cam 4, is provided with spring 8 between the inner walls of the upper end of described strutting piece 6 and its top; The lower end of described push rod 2 also is provided with axial screw, and this screw internal fixation has adjustment screw 9, and tightly touch mutually the operating side of the header planes of this adjustment screw 9 and travel switch 10; Described pivoted arm is the fork-shaped pivoted arm, by the bearing pin riveting one group of roller is arranged on it; Described roller is two, the position have three kinds available, two-wheeled is all preceding; Perhaps revolver is preceding, right wheel after; Perhaps revolver after, right wheel is preceding. Roller 5,7 all can rotate around bearing pin.
Push rod axially reciprocatingly slides with transmission mechanism, and its stroke is restricted by the camming movement track.
After moving machinery touched the roller of rolling fork type device, active force passed to push rod by the cam in the rotating shaft, and the pull switch element makes contact closure or disconnection, reached the purpose of control.
Rolling fork type device of the present utility model has limit function.The position-limit mechanism of forming by cam and housing inner arm with the Stroke Control of push rod in the impulse stroke limit that switch element allows, realize automatically spacing, thereby to having improved the reliability of work.
Cam in the rolling fork type device of the present utility model is provided with the counter-force buffer protection of roller belts guiding, therefore makes mechanism's work very steady; Owing to adopt rolling structure, the friction of motion resistance is little, has prolonged useful life simultaneously.
Rolling fork type device of the present utility model can effectively overcome the impulsive force that protection test is born, or the misoperation that produces at work.
Claims (7)
1. reverse rolling fork type powder operation device, it is characterized in that, comprise housing, transmission mechanism, push rod, described transmission mechanism comprises the irregular cam in rotating shaft, cross section of being with pivoted arm, and described cam is sheathed on the head end of rotating shaft, both tight fits, this head end is positioned at the top of push rod, and the upper end of described push rod offers axial groove, fixes a roller by bearing pin in this groove, this roller and cam meshing close, and described cam is provided with and is positioned at its upper right protuberance.
2. a kind of reverse rolling fork type powder operation device according to claim 1, it is characterized in that, described transmission mechanism also comprises the strutting piece of being close to inner walls, this strutting piece is positioned at the top of rotating shaft head end, a roller is fixed by bearing pin in its lower end, this roller and cam meshing close, and are provided with spring between the inner walls of the upper end of described strutting piece and its top.
3. a kind of reverse rolling fork type powder operation device according to claim 1 and 2, it is characterized in that, the lower end of described push rod also is provided with axial screw, and this screw internal fixation has adjustment screw, and tightly touch mutually the header planes of this adjustment screw and the operating side of travel switch.
4. a kind of reverse rolling fork type powder operation device according to claim 3 is characterized in that described pivoted arm is the fork-shaped pivoted arm, by the bearing pin riveting one group of roller is arranged on it.
5. a kind of reverse rolling fork type powder operation device according to claim 4 is characterized in that described roller is two, and two-wheeled is all preceding.
6. a kind of reverse rolling fork type powder operation device according to claim 4 is characterized in that described roller is two, and revolver is preceding, right wheel after.
7. a kind of reverse rolling fork type powder operation device according to claim 4 is characterized in that described roller is two, revolver after, right wheel is preceding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201985580U CN201163587Y (en) | 2007-11-29 | 2007-11-29 | Inverse rolling fork type operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201985580U CN201163587Y (en) | 2007-11-29 | 2007-11-29 | Inverse rolling fork type operation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163587Y true CN201163587Y (en) | 2008-12-10 |
Family
ID=40184516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201985580U Expired - Fee Related CN201163587Y (en) | 2007-11-29 | 2007-11-29 | Inverse rolling fork type operation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163587Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866772A (en) * | 2010-06-09 | 2010-10-20 | 五力机电科技（昆山）有限公司 | Manual shift switch |
-
2007
- 2007-11-29 CN CNU2007201985580U patent/CN201163587Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866772A (en) * | 2010-06-09 | 2010-10-20 | 五力机电科技（昆山）有限公司 | Manual shift switch |
| CN101866772B (en) * | 2010-06-09 | 2011-12-28 | 五力机电科技（昆山）有限公司 | Manual shift switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20161129 |